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A METHOD OF PRE-EMPTIVELY REGENERATING A LEAN NOX TRAP.
A METHOD OF PRE-EMPTIVELY REGENERATING A LEAN NOX TRAP.
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机译:一种预先生成再生NOx捕集阱的方法。
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摘要
This invention purges an NOx trap pre-emptively to avoid NOx slippage. It does this by monitoring a vehicles routes 215, then using that historical data to predict when NOx slippage will occur 220. If NOx is likely to escape or be released, it will then predict the engines future load, and work out if there will be a favourable opportunity for it to purge or regenerate the NOx trap, or LNT 230. It can also measure other engine factors, such as exhaust temperature, drops in air/fuel ratio and high or low engine speed, and use this information to calculate the probability of NOx slippage.
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